#pragma once

#include "Event.h"

// Fired when the game world view's scroll position actually moved (REQ-UI-SCROLL), once
// per frame at most and not at all while the view sits still. Carries no payload: what it
// says is that the world-to-widget transform has changed, and whoever cares re-reads it.
//
// It exists for the widgets that keep a place in the world rather than on the screen --
// the asteroid expansion button, which stands on the columns it would buy
// (REQ-UI-EXPAND-BUTTON). The floating panels need nothing of the sort: they are placed
// against the screen and stay put as the view moves under them (ui/FloatingPanel.h).
class ViewScrolledEvent : public Event
{
};